To the best of my knowledge I don't remember this ever being discussed here, please anyone correct me if I'm wrong.
I think I may be right in saying, but any input will be more than welcome, that any vessel regardless of size, proceeding to sea in "categorised waters" (that is not inland rivers or small lakes) has to now have by law a written passage plan and where practical a radar reflector. The plan for small vessels and short passages as I understand it does not have to be comprehensive i.e. unlike one for a tanker or cruise ship, but does have to take into account tides, weather, traffic and any dangers.
Any comments anyone?